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Method for preparing stabilized hydrocarbon oil blend

a technology of hydrocarbon oil and stabilized hydrocarbon, which is applied in the direction of emulsification, transportation and packaging, fuels, etc., can solve the problems of clogging of pipelines, nozzle plugging in combustion devices, fouling and coking, etc., and achieves the effect of quick, easy and reliable preparation, and rapid checking of the stability of the blend

Active Publication Date: 2017-04-18
SK INNOVATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0052]According to embodiments of the present disclosure, a method of preparing a stabilized hydrocarbon oil blend can employ a quick, easy and reliable model able to predict stability of the blend, and the stability factor of each of two or more hydrocarbon oils to be blended can be arranged into a database in advance, thereby enabling rapid checking of the stability of the blend before actual blending.
[0053]Particularly, the kinds and amounts of hydrocarbon oils to be blended are adjusted so as to satisfy requirements in accordance with particular Mathematical Formulae based on the stability factors, thereby simplifying preparation of a stabilized hydrocarbon oil blend. Therefore, a wide range of commercial uses are expected in future.

Problems solved by technology

However, such heavy oils and crude oils contain a considerable amount of asphaltenes, and thus stability thereof may become problematic upon blending.
When heavy oils or heavy oil and crude oil are blended so as to be utilized as fuel oils or ship oils or when various crude oils are blended so as to be transported via pipelines or to serve as fuel oils, the precipitation of asphaltenes arising from blending of hydrocarbon oils may cause serious problems including nozzle plugging in combustion devices, fouling and coking, and clogging of pipelines.
Although such methods are useful for checking the stability of the blends in part, they have technical limitations, for example, how to blend a plurality of hydrocarbon oils without precipitation of asphaltenes cannot be predicted in advance.
However, the aforementioned techniques involve comparatively complicated calculations and procedures to determine the related parameters, and thus a method of preparing a stabilized hydrocarbon oil blend using a prediction model that is quick, easy and reliable is still needed in the art.

Method used

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  • Method for preparing stabilized hydrocarbon oil blend
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  • Method for preparing stabilized hydrocarbon oil blend

Examples

Experimental program
Comparison scheme
Effect test

example 1

Calculation of Stability Factor

[0104](1) Calculation of Stability Factor Using Reference Sample (Less than SPOT 2)

[0105]1) The minimum amount of a hydrocarbon oil to be blended with 100 g of a reference sample (oil having SPOT 5) to adjust the SPOT value of the blend to 1 was measured through the following procedures, and a stability factor was calculated.

[0106]The reference sample was added with the corresponding sample in a predetermined amount (an expected amount), and stored in an oven at 50° C. for 30 min, after which some of the mixed sample was taken and subjected to SPOT testing according to ASTM D4740. These procedures were repeated, as necessary. When the SPOT value of the blend arrived at 1, the amount of added hydrocarbon oil was decided as an addition amount for calculation of the stability factor.

[0107]The amount (minimum amount) of each of added hydrocarbon oils and the stability factor (SF; ai) of Mathematical Formula 2 are shown in Table 8 below.

[0108]

TABLE 8AddedSt...

example 2

Preparation of Home Fuel Oil Blend Using Crude Oil

[0128]The stability factor (SF) for two crude oils (PYR and DURI; SPOT 1) was determined using the method of Example 1, and the stability factor value (SFV) for the blend of two crude oils was measured. The results are shown in Tables 13 and 14 below.

[0129]

TABLE 13SampleAdded Amount (g)Stability Factor (SF)PYR900.0111DURI1500.0067

[0130]

TABLE 14Blend composition (wt %)PYRDURISFVCheck72.028.00.987>0

[0131]

TABLE 15Viscos-FlashPourNitro-GravitySulfuritypointpointgenCCR(15 / 4° C.)(wt %)(mm2 / s)(° C.)(° C.)(ppm)(wt %)SPOT0.93720.206511617.516032.741

[0132]As is apparent from Table 15, the blend of two crude oils may satisfy typical standards for representative properties of fuel oil (especially bunker-C) as shown in Table 16 below, and stability thereof may also become superior. Thus, upon transporting the blend, problems such as pipe clogging may not occur. In particular, the check criteria shown in this embodiment and the actual stability we...

example 3

Application of Heavy Oil Product (Blend) to Small Boiler

[0137]A plurality of hydrocarbon oils (heavy oils) used in Example 1 was blended as shown in Table 17 below, thus preparing a blend. The properties of the prepared heavy oil product (blend) are given in Table 18 below.

[0138]

TABLE 17Blending ratio (wt %)ClassificationL / S ARt-LGOHCNLCOTotalSFVBlend20.031.039.010.01001.525

[0139]

TABLE 18PropertiesFlashPourGravitypointViscositySulfurpointClassification(15 / 4° C.)(° C.)(mm2 / s)(wt %)(° C.)SPOTBlend0.9158784.00.28−2.51

[0140]The heavy oil product (blend) thus prepared was applied to a small boiler (a burner) for greenhouses and thus ignition, flame state, and generation of soot were observed with the naked eye. As such, the boiler was an FBR burner (with a heat gun, full load: 42 L / hr).

[0141]Based on the evaluation results, (i) there were no ignition problems at night or in the dawn during the winter requiring a large amount of fuel, (ii) there were neither flame nor fire power problems ...

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Abstract

Disclosed herein are a method of preparing a hydrocarbon oil blend having superior storage stability using a novel stability prediction model that is quick, easy and reliable; and a method of predicting the stability of a hydrocarbon blend.

Description

RELATED APPLICATIONS[0001]This application is a United States national phase application under 35 USC §371 of PCT / KR2013 / 003167 filed on Apr. 16, 2013, and claims the benefit under 35 USC §119 of Korean patent application number KR 10-2012-0039871 filed Apr. 17, 2012, the disclosures of which are incorporated herein by reference in their entireties.TECHNICAL FIELD[0002]The present disclosure relates to a method of preparing a stabilized hydrocarbon oil blend. More particularly, the present disclosure relates to a method of preparing a hydrocarbon oil blend having superior storage stability using a novel stability prediction model that is quick, easy and reliable, and to a method of predicting the stability of a hydrocarbon blend.BACKGROUND ART[0003]With the increasing depletion of petroleum resources, there are needs for methods of decreasing the material costs and producing value-added products using heavy oils generated in the course of refining crude oils or using, as alternative...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C10L1/04G01N33/28
CPCC10L1/04G01N33/28C10G2300/20C10G2300/302C10G2300/304C10G2300/308C10L2200/0407C10L2290/24C10L2290/60C10G99/00B01F23/40
Inventor JOO, CHANG WOOLEE, YUN HEECHOI, KI SEOKKIM, GWANG HYOUNKIM, YOUNG SUKNO, MYOUNG HANPARK, DONG WOOKKIM, EUN KYOUNG
Owner SK INNOVATION CO LTD